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olga_2 [115]
4 years ago
10

The term solstice translates as "Sun stop." Explain why this translation makes sense from an astronomical point of view. It make

s sense because on that day the Sun ...
Physics
2 answers:
adoni [48]4 years ago
4 0

Answer:

It makes sense because on that the day  the sun stops moving northward and starts moving southward

Explanation:

JulijaS [17]4 years ago
4 0

Answer:

Explanation:

Solstice is gotten from the Latin word 'solstitium'. 'sol' means the sun and 'sistere' means 'to cause to stand or stand still'. From an astronomical point of view, this translation makes sense because this term is used to describe that particular instance when the sun attains its maximum northern point or maximum southern point from the equator of the earth.

When the sun attains northernmost point from the equator, summer solstice occurs and consequently causing the Earth to experience the longest day of the year. Similarly, when the sun attains its southernmost point from the equator, the Earth's proximity to the sun is at its closest and thereby making the Earth to experience the shortest day of the year. Astronomically, this is known as the winter solstice

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When a mass of 29 g is attached to a certain spring, it makes 20 complete vibrations in 3.1 s. What is the spring constant of th
never [62]

Answer:

The spring constant of the spring is 47.62 N/m

Explanation:

Given that,

Mass that is attached with the spring, m = 29 g = 0.029 kg

The spring makes 20 complete vibrations in 3.1 s. We need to find the spring constant of the spring. We know that the number of oscillations per unit time is called frequency of an object. So,

f=\dfrac{20}{3.1}

f = 6.45 Hz

The frequency of oscillator is given by :

f=\dfrac{1}{2\pi}\sqrt{\dfrac{k}{m}}

k is the spring constant

k=4\pi^2f^2m

k=4\pi^2\times (6.45)^2\times 0.029

k = 47.62 N/m

So, the spring constant of the spring is 47.62 N/m. Hence, this is the required solution.

4 0
3 years ago
PLEASE ANSWER ALL THE QUESTIONS WILL MARK AS BRAINLIEST 20 POINTS
iogann1982 [59]
8:B) Again, sound travels faster in solids
9:D) There is no particles for the sound to travel faster
10:D) The speed of light never changes the only thing that makes light change is when it travels through objects of different densities. 
3 0
3 years ago
If the electrons are attracted more by the nucleus because of an additional proton, what would happen to it?
Rus_ich [418]

Answer:

orbital speed of the electrons in their orbit will increase

Explanation:

As we know that centripetal force for electrons will be due to electrostatic attraction force of electron.

So it is given as

F_e = F_c

so we have

\frac{(Ze)(e)}{4\pi \epsilon_0 r^2} = \frac{mv^2}{r}

now on the left side if the force of attraction will increase and hence there must be the change in that part of equation

So here at the same position the speed of the electron

So we can say that correct answer will be

orbital speed of the electrons in their orbit will increase

4 0
3 years ago
Please help on questions D AND E and please show working out as well so I can understand better thank you only QUESTIONS D AND E
tester [92]

Answer:

d. 87,500 J

e. 49,600 J

Explanation:

The total energy is the heat absorbed by the copper plus the heat absorbed by the water.

d)

E = m₁C₁ΔT + m₂C₂ΔT

E = (1 kg) (390 J/kg/°C) (10 °C) + (2 kg) (4180 J/kg/°C) (10 °C)

E = 87,500 J

e)

E = m₁C₁ΔT + m₂C₂ΔT

E = (2 kg) (390 J/kg/°C) (10 °C) + (1 kg) (4180 J/kg/°C) (10 °C)

E = 49,600 J

5 0
3 years ago
in terms of mechanical advantage and velocity ratio write an expression for the efficiency of a simple machine​
mixer [17]

Answer:

Efficiency = (MA/VR) ×100%

8 0
3 years ago
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